llc: Count timedout and silently dropped frames

A DL tbf can be discarded and then the already queued LLCs will
be silently dropped. Count this event.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/tbf.cpp b/src/tbf.cpp
index cdd80983..1fa7c6e3 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -324,8 +324,10 @@ void tbf_free(struct gprs_rlcmac_tbf *tbf)
 			"be sure not to free in this state. PLEASE FIX!\n");
 	tbf->stop_timer();
 	#warning "TODO: Could/Should generate  bssgp_tx_llc_discarded"
-	while ((msg = msgb_dequeue(&tbf->llc_queue)))
+	while ((msg = msgb_dequeue(&tbf->llc_queue))) {
+		tbf->bts->dropped_frame();
 		msgb_free(msg);
+	}
 	tbf_unlink_pdch(tbf);
 	llist_del(&tbf->list);
 
@@ -714,6 +716,7 @@ struct msgb *gprs_rlcmac_tbf::llc_dequeue(bssgp_bvc_ctx *bctx)
 			LOGP(DRLCMACDL, LOGL_NOTICE, "Discarding LLC PDU of "
 				"DL TBF=%d, because lifetime limit reached\n",
 				tfi);
+			bts->timedout_frame();
 			frames++;
 			octets += msg->len;
 			msgb_free(msg);